1. Nanjing Hydraulic Research Institute, 34 Huju Guan, Nanjing, China, 210024; formerly, Graduate Student, Civil and Structural Engineering Dept., Hong Kong Polytechnic Univ., Hung Hom, Kowloon, Hong Kong.
2. Associate Professor, Civil and Structural Engineering Dept., Hong Kong Polytechnic Univ., Hung Hom, Kowloon, Hong Kong.
3. Professor and Head, Civil and Structural Engineering Dept., Hong Kong Polytechnic Univ., Hung Hom, Kowloon, Hong Kong.